TREX ONESTEPTL is a tool for installing concealed fasteners. It allows you to install fasteners in one step. Thanks to the special nose cone that perfectly matches the head of the screw, you hit the target precisely every time. The handle has a special storage space for the star bit. It is always at hand, it will never get lost. Important point - this tool only works with Trex Hideaway universal fasteners. You have to buy them separately, but trust me, it's worth it. This tool doesn't just speed up your work, it makes it more enjoyable. No more uneven seams or protruding screw caps. Everything is smooth and beautiful.